<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>
<body>
  <form>
    昵称：<input type="text" placeholder="请输入您的昵称"><br><br>

    <!-- 提交按钮 -->
    <button type="submit">button提交按钮</button>

    <!-- 重置按钮 -->
    <button type="reset">button重置按钮</button>

    <!-- 普通按钮 -->
    <button type="button">button普通按钮</button>
  </form>

</body>
</html>